#include<fstream>
using namespace std;
int main ()
{
    int N,i,p1,p2;
    p1=1;
    p2=1;
    ifstream fin("patrate2.in");
    ofstream fout("patrate2.out");
    fin>>N;
    for(i=1;i<=N;i++)
    {
        p1=p1*i;
        p2=p2*4;
    }
    p1=p1*p2;
    fout<<p1;
}